I have fond memories of loving this movie back in the 1970s, Peter Bogdonovich's resurrection of the screwball comedy genre. Now, fifty years later, I still laughed, maybe not quite as heartily as before, but still…
Here's the story: Iowa musicologist Howard Bannister (Ryan O'Neal) comes to San Francisco to learn whether he's been awarded a prestigious research grant from the Larrabee Foundation. (He is investigating whether cavemen were able to make crude music by beating on igneous rocks.) He has his domineering fiancée Eunice (Madeline Kahn) along with him. On the scene comes Judy Maxwell (Barbra Streisand), and she unaccountably falls into love with Howard (literal love at first sight). She successfully inveigles her way into his life, but not without causing much hilarious misunderstanding and impressive amounts of property damage.
A subplot involves four lookalike bags, one containing Howard's research rocks. The others containing top secret documents purloined by a wannabe whistleblower; a fortune in jewelry; and Judy's clothing. And of course they get mixed up. Adding to the hilarity and destruction.
Morbid me, couldn't help but notice that most of the stars here are no longer with us. Still (apparently) alive, however: Barbra, Michael Murphy, Randy Quaid.
I get the feeling the movie is poorly paced near the end, but I still had a good time.